Quick search:

Who to     contact   Organizing Committees     Topic     Convenors People and contacts List of delegates    Our       sponsors

Conference   venue    Advice for  participants    Useful    information List of deadlines    Other    Brazilian conferences

Registration   details   Accommod-   ation     Local     tours

Conference   theme      Keynote       speakers       *  Main  *       * topics *    Contributed   papers     Posters   Special interest groups Special sessions Administrative meetings

Timetable outline Programme details Monday's programme Tuesday's programme Wednesday's programme Thursday's programme Friday's programme

Notes for participants and authors Guidelines for authors & organizers Announce-   ments

This paper is from Session 7D: Interactive software targeting specific statistical concepts

which comes under Topic 7: Technology in Statistics education             Full topic list

(Thursday 6th, 10:30-12:30)

Interactive 3-dimensional diagrams for teaching multiple regression

Presenter

• Doug Stirling (New Zealand)

Abstract

Many concepts in simple linear regression can be explained or illustrated on scatterplots. Similar diagrams for regression with two explanatory variables require 3-dimensional scatterplots. Appropriate colouring and dynamic rotation on a computer are needed to effectively show their 3-dimensional nature. Concepts such as multicollinearity, sequential sums of squares and interaction have no analogue in simple linear regression, so it is particularly helpful to illustrate them graphically. This paper gives several examples of concepts in multiple regression that can be illustrated well with 3-dimensional diagrams.